1.1 - If you have an iPhone ranging from the iPhone 5S to iPhone XS please see this video for placement instructions.
1.2 - If on the other hand you have an iPhone XS Max, XR or newer please place your SIM using these instructions
Wait a few seconds until the following menu is displayed:
Select the ICCID Perfect Unlock option and delete the default ICC and replace it with this one: 89014104279605344027
If you need to set up your Internet connection, you can check how to do it here
Congratulations! Your iPhone is now unlocked!
If you run into any trouble configuring your UMS, please visit our Support Forum.
You'll find answers to most common problems and workarounds.